IPA: /bɪˈliːvəˌbɪlɪti/
KK: /bɪˈliːvəˌbɪlɪti/
The quality of being able to be believed or accepted as true.
The believability of the story made it very popular among readers.
Believability is formed from "believe" (from Old English "geliefan", meaning to hold as true) and "-ability" (from Latin "abilitas", meaning capability). The word refers to the quality or capability of being believed or accepted as true.
Think of the word 'believe' which means to hold something as true, and '-ability' which indicates capability. This helps you remember that 'believability' is about the quality of being able to be believed.